Slash asked them if he could do a song for the movie. That's right. THE Slash.

Candace's determination to bust her brothers can lead to one of those.

Anything Perry does when in agent mode, really.

Phineas and Ferb in general are made of this trope. Some people dream of coming up with a genius invention even once. These boys do it every day.

Season 1

Lawn Gnome Beach Party of Terror

Phineas tricking Buford using a holographic projection of himself.

Flop Starz

"FOLLOW UP SINGLE?! Who do you think we are?! Some two-bit hacks who keep writing songs just because you pay us OBSCENE AMOUNTS OF CASH!? Phineas and the Ferb-Tones are strictly a one-hit wonder! GOOD DAY TO YOU, SIR!"

Raging Bully

Ferb oneshotting Buford by pinching his neck.

"Well, he was getting all up in my face."

S'Winter

Doofenshmirtz actually managing to re-trap Perry after Perry had escaped from his first trap!

Ready for the Bettys

Candace finally calling out the Bettys for taking advantage of her and Stacy.

Then, when the band is thanking Candace for taking charge of the out-of-control bus they ask how they can ever thank her. Candace's answer is pretty awesome, especially since she was dead serious:

Candace: "You can come to my house and clean my room."

Phineas, Ferb, and Agent P saving the Bettys and their bus.

Get That Bigfoot Outa My Face!

Phineas and Ferb's trick at the campfire. Immediately topped by the one played by Candace and their grandparents.

Journey to the Center of Candace

Perry taking down Doofenshmirtz within ten seconds when he indirectly threatens the boys' lives.

It's About Time!

The Fireside Girls building a time machine to rescue Phineas, Ferb, and Candace with nothing to go on except for a (flawed!) blueprint. And they do it from scratch. Even Phineas and Ferb had had a semi-complete (if non-functioning) model to work with. Is it any wonder that they're the ones who help out with the boys' projects all the time?

Admittedly much less spectacular than some of these, but the way Ferb dodges Suzy's attack is oddly awesome. It's actually aided by his completely blank expression, which basically sends the message "I could do this in my sleep if I wanted to, kid." He wasn't even LOOKING when dodged!

Voyage to the Bottom of Buford

Buford getting over a fear of giant squids and then defeating one in just one hit.

Also his flashback showing him beating up the much bigger previous local bully even before he became a bully himself. Notably, in both cases he was protecting his goldfish.

Traffic Cam Caper

Perry's inexplicably convincing Ferb disguise.

Bowl-R-Ama Drama

The entire bowling ball/pinball game, including Perry making use of it to defeat Doofenshmirtz at the end. Some highlights include:

Isabella when keeping the ball in play. She goes up to a man at the carnival and pays to play his rigged game of hitting the bottles. She pays, takes the ball, winds up...and then calmly waits for the giant bowling ball to crash into the stand. Maybe you have to see Isabella's smug expression to get the full effect, but it was great.

Man: ...Take your pick. Anything from the top.

Ferb comes to a stop beside a fruit stand as the ball is falling from the air. After a moment of consideration, he moves the stand keeper a bit to the side. Moments later, the ball lands on the fruit stand, splattering pulp and juice all over everything and everyone present— except for Ferb, who has positioned the stand keeper in just the right place to shield him from the mess.

Phineas and Ferb break three world records at once. Presumably they do so on a regular basis, but this is one of the few times they get recognition for it (albeit as part of the "World's Most Pointless Records").

Phineas and Ferb build the giant bowling ball literally in their sleep.

Got Game?

Isabella beating Buford at foosball (both the regular-sized and the F-Games version).

Isabella and her Fireside Girls forming a trampoline instantaneously using their sashes in order to save Phineas's life.

Phineas and Ferb Get Busted!

Candace becoming an emotional wreck to save her brothers, followed by perhaps the most empowering usage of Phineas's "I know what we're gonna do today" line on the show.

Which is then followed by Perry unhesitatingly showing up in one of Dr. Doof's -inators and using it to get rid of the Sergeant, then departing with a completely Badass tip of his hat and an "I've got this covered" expression. (Oh, and he was simultaneously fighting Doofenshmirtz the entire time.)

"I'm going to bust my brothers... out!"

Season 2

Interview With a Platypus

Perry demonstrating his semi-aquatic capabilities by out-swimming a motorboat.

Backyard Aquarium

Perry escaping from his trap by replacing himself with a dummy offscreen... somehow...

Perry Lays an Egg

"How does it feel to have﻿ your platyposterior handed to you on a plate, son?"

Gaming the System

Candace fighting and defeating Giant Buford. While wearing nothing but a towel and hair curlers, no less.

The defeat, of course, consisting of beating the crap out of him with her own health bar.

Followed by Isabella defeating the next Giant Buford boss using a camera.

After souping up the alien ship that crashed into the yard, Ferb goes for a joyride and happens to drive past his crush, Vanessa Doofenshmirtz. He stops, drives back to her, rolls down his window and flirts with her. He then flies off amazingly fast. Even though she is sixteen and he is "less than 15", she looks genuinely impressed!

Candace's Big Damn Heroes moment, using Phineas and Ferb's baseball shooter to effortlessly wipe out a group of robots.

Preceded by her (with Meap's help) flying a bicycle up to Mitch's ship to rescue Phineas, Ferb, and Isabella (remember, she's terrified of heights)

And followed by her setting Meap free while Mitch is distracted monologuing. Basically, Candace is the hero of this episode.

It was foreshadowed from the start, but Meap turning out to be a PintsizedBadass Adorable with a rainbow death ray and swiftly dispatching Mitch was still awesome. Even more impressive considering that "Meapless in Seattle" revealed that Mitch is really a Meapian inside a mechanical suit, and that not even Meap was aware of this. Meap took down a mechanical suit with physical blows alone, without even knowing that he was fighting a mechanical suit, and probably does so with some regularity.

Thaddeus and Thor

Phineas and Ferb revealing the rest of their (previously seemingly plain) fort.

Dr. Doofenshmirtz finally making a successful (and extremely epic) kick in kickball (even though he still gets tagged out because he was too busy bragging about it).

Though more mundane, there's Doofenshmirtz's cup-stacking skills and the fact that Candace later breaks his record.

Oh, There You Are, Perry

Doofenshmirtz's defeat of the Regurgitator.

Hide and Seek

Phineas, Ferb, and their friends (and Irving)note except for Baljeet, who spent half the episode inside adead fly, which on some level arguably constitutes as a moment of awesome in itself defeating a robot using needles and thread and Isabella being the one to knock it out by pulling its leg out from under it. Also Ferb rewiring it in a second to become a flying machine afterward.

Baljeet finally snaps when he's told that he won't be graded for summer camp (which he had thought was a geology camp when it was really a rock music camp). So he storms onstage and demonstrates his hidden Power of Rock, and it is awesome.

It's the best the first time you see it. The entire episode is funny, but the whole time you just get the feeling that Baljeet will HAVE to do a song. You're terrified for Baljeet and your eardrums for the entire episode, until Baljeet storms up on stage and sings the first line. And then your head explodes, because it just gets better and better.

Vanessassary Roughness

When Doofenshmirtz - without blinking an eye - uses his helmet-mounted 'Away-inator' to zap the biker who makes a pass at Vanessa.

Dr. Doofenshmirtz: "She's sixteen!" ZAP!

Ferb's rescue of Vanessa at the end of the episode qualifies. Rescue Romance, anyone?

Vanessa showing her mad skills in the "I'm Me" song. Just about everything Ferb does in that sequence too.

Phineas and Ferb's Quantum Boogaloo

Basically the entire episode - it really had an outstanding story to it. While the boys getting busted was rather heartbreaking to watch, and the part with Doofenshmirtz becoming ruler was scary, once bad future Candace returns to the good future is when it really kicks into high gear.

A minor one for Doofenshmirtz: when he becomes ruler and even the OWCA has to swear allegiance to him, what does he do to keep them from usurping him? He doesn't disband the organization, or put its members in jail, he just intercepts the transmission after Perry is assigned a mission and mockingly tells him not to do whatever the mission is. Just so he can crush their spirits even more.

Phineas and Ferb Musical Cliptastic Countdown

This:

Major Monogram: Okay, that doesn't even make sense.

Dr. Doofenshmirtz: It doesn't have to, I've got a monster truck!

He then makes a spectacular exit on said truck. Monogram is stunned for a moment, then he tries to finish what he was saying... only for Doofenshmirtz to drive back and run over his feet!

Doofenshmirtz is predictably trapped in a cage at the end, and Monogram smugly asks him to say goodnight to the audience. The audience is expecting him to say something like "Goodnight to the audience", but what does he say instead?

Dr. Doofenshmirtz: You know, one day, I'll get out of this cage. But your name will still be Francis.

Perry defeating the hypnotized audience by revealing the #1 song on the countdown.

Bubble Boys

Candace driving without getting into a traffic accident despite having a jetpack attached to the car, and pulling off a perfect parallel park.

Isabella and the Temple of Sap

The entire sequence where Isabella and the Fireside Girls retrieve the maracanut tree from the abandoned amusement park and obtain the sap Phineas and Ferb needed for their project.

Cheer Up Candace

Perry is framed by Dr. Doof and is about to be arrested by the other agents, but he easily escapes and they end up handcuffing each other. Later in the episode, he has to fight almost all of his doppelgangers that Doof had created (and used to frame him in the first place) and handily defeats them.

Fireside Girl Jamboree

Though it turns out to be unnecessary and she had help from Phineas, Ferb, and Isabella, it's still impressive that Candace succeeds in earning 50 Fireside Girl patches in one day, accomplishing feats like wrestling an alligator and running all the way up to the top floor of Doofenshmirtz's building in order to do so.

Nerdy Dancin'

Ferb's dance.

Doofenshmirtz intercepting Perry's helicopter with a giant robotic arm before his jingle ends.

Doofenshmirtz: I think we made too much potato salad, Norm. I guess we’ll have to give everyone a two-ton take home container and I still think you should have added more green onions.

Norm:: Well, next time you can do all the cooking and I’ll stand around coming up with evil plans that ultimately fail!

Doofenshmirtz: [Long awkward pause.] Wow. Cuttin deep, man.

How Perry disposes of the L.O.V.E.M.U.F.F.I.N. members, even by Agent P standards. He pulls out two huge knives and cuts various heavy objects from the ceiling to drop onto the evildoers below. This is one of the few times Doofenshmirtz is seen hospitalized in the aftermath of his defeat.

Atlantis

Perry coming back to save Doofenshmirtz from his mutated plants. Using a chainsaw.

Ferb tossing a paper-maché boulder straight to the top of the replica Niagara Falls.

Phineas: You know, even though I know that's paper-maché, that's still an impressive throw.

After Doofenshmirtz tricks him into falling out of a blimp, Perry proceeds to pursue and foil Doofenshmirtz using a banana truck, all with a platypus-themed truck-driving song playing on his CD player.

Undercover Carl

The first time we see Major Monogram goes into the field himself, he goes with a small army.

Hip Hip Parade

The ways in which Phineas and Ferb deal with the various contingencies Buford puts the parade through.

Ferb saving Candace with Improbable Aiming Skills. To elaborate, Candace is falling down a canyon on a rocket powered by quarters, but she doesn't have any quarters left. Ferb casually parks his rocket on a side of the canyon, catches the attention of a couple of tourists, does a robot routine to earn a quarter, then slingshots said quarter directly into the quarter slot moments before the rocket hits the ground.

Phineas and Ferb-Busters!

Doofenshmirtz gets a more advanced robot to replace Norm, and a lot of time is spent hyping up how much better it is. However, when hit with a wave of energy, the robot transforms into a Humongous Mecha and decides that it needs to destroy Doofenshmirtz. After it easily flicks Agent P out of the building, it's up to the unaffected Norm to protect Doofenshmirtz. He promptly takes the much larger and more advanced machine down. With a cup of coffee.

Phineas and Ferb's solution to having to both rescue Isabella (who is dangling from a building) and prevent a billboard from falling on the crowd below while in their superhero suit. Phineas gets out of the suit to save Isabella as Ferb (who only has control of the suit's lower body) shatters the billboard to little bits by spinning through it using the suit, all the while not breaking their cover to Isabella.

Candace gives a rather badass response to Isabella's discovering that Phineas is the Beak.

Candace: "You just got your 'Uh, dur' patch."

Phineas and Ferb Hawaiian Vacation

Doofenshmirtz steals Perry's boat and flees the island... only for Major Monogram to pop out of the sand and reveal to the audience that Doofenshmirtz had been set up all along. During the credits, Doofenshmirtz's escape is put to an end when he is eaten by Agent W (a whale).

Nerds of a Feather

As leaders of two separate fandom groups, Baljeet and Buford spend most of the episode engaging in a rather unhealthy rivalry over whose franchise is the best, until their fighting is interrupted by the sudden appearance of a giant monster (actually an animatronic effect). When Buford tries to run away, a strict Baljeet stops him and asks him if Odar Underhump (the character Buford is cosplaying as) would've run away from danger. Buford gets his point, and the two decide to unite their fandom groups to fight against a common enemy - Which is exactly what Phineas was hoping they would do.

We Call it Maze

The project of the day is essentially a live-action cross between Professor Layton and a Zelda temple game. Probably unintentional, but still extremely cool.

Candace: Yeah, where are we gonna get- (looks back at where the grappling hook and rope once were)

(the platform they're standing on starts retracting)

Isabella:(with a smug smile on her face) Oh, would you look at that?

Candace: The platform's retracting! What are we gonna do?

Isabella: You're the one who got 50 Fireside patches in one day.

Ladies and Gentlemen, Meet Max Modem!

Doofenshmirtz making his invention capable of defending itself from Perry's attacks was pretty cool. It only fails because he programmed it with his own knowledge about Perry, and thus it falls for a Paper-Thin Disguise.

The Secret of Success

Doofenshmirtz passively kicking Perry in the face. No big deal is made of it, but it incapacitates Perry effectively.

Near the end, Doof ends up in a junkyard where Vanessa and her friends are partying (don't ask) and a mishap causes his hands to be glued to the turntables. This stops the music, which pisses off the teens. But then, rather than leave his archnemesis to be humiliated in front of his daughter, Perry slaps the mind control helmet from earlier in the episode on Doofenshmirtz and starts making him... bust out some awesome beats. Hell ya. Made even better by the fact that Perry left the controls behind about halfway through the song, so Doof was doing it all on his own from there on. The song in question also qualifies as yet another Crowning Music of Awesome for this show.

Phineas, Ferb, and their friends helping Perry defeat Doofenshmirtz by controlling Perry in perfect sync with one another. (They thought they were playing a video game. It's a long story.)

Rollercoaster: The Musical!

The entire episode. Why? Well, for one, it is the SECOND time they go back to the pilot, cross-reference it and play around with it to hell and back. Second, it consists almost entirely of songs, whereas the original contained none, as if the directors figured "Fuck it, let's fix that." And just to go completely nuts, not only does it at seemingly random either expand or mix up the jokes they repeat from the pilot, but the whole thing ends with a big dance number featuring practically every single character that has ever appeared in the series so far. Had this been the end of the series, it would have possibly been the biggest, most spectacular Disney animated series finale ever, only rivaled by "Summer Belongs To You". And when you think about it, the fact that they can make a special and a regular episode that both feel like perfect ends to the series so soon after another is a Crowning Moment of Awesome for the entire creative team.

At the start of "Carpe Diem", Phineas hopes the musical wasn't anticlimactic. If anyone thought so at the start of the song, they probably sure didn't by the end of it. The sheer Continuity Porn in "Carpe Diem" makes it one (among many) of those Phineas and Ferb segments you just have to watch over and over again in order to catch all the little details (and for the song as well, of course).

Make Play

Candace gets a minor one:

Princess Baldegunde: Candace, I need to ask you question, how is pronounced the name of cute blonde boy with guitar?

Candace dismantling almost the entire train to provide enough fuel for it to keep going up the mountain.

Phineas' Birthday Clip-O-Rama!

Candace decides to for once really fight against her Cosmic Play Thing fate and performs quite the impressive stunts to preserve the DVD that contains all the proof she will ever need for all of P&F's projects. We even have a kid asking her for an autograph after all of that. Bonus points because of what happened next, but you should read the heartwarming entry to learn about that.

The epic Bait-and-Switch in the way Doofenshmirtz's machine comes into play with the A plot.

The Belly of the Beast

Candace taking charge after the captain is "eaten" by the mechanical shark and actually succeeding in towing the shark to shore (granted, assisted by intense waves).

Bad Hair Day

Mrs. Johnson being a crack shot with the tranquilizer gun after just reading the instruction manual.

A small one, but Doofenshmirtz predicting exactly how many seconds it would take for him to fall unconscious with perfect accuracy.

Candace effortlessly scaling the museum is pretty impressive.

Meatloaf Surprise

Perry setting up his trap escape even before it becomes obvious where Doofenshmirtz is going to aim with his -inator.

Phineas and Ferb Interrupted

The boys get hit with a "dull-and-boring-inator" and become just that, and it's actually sort of depressing to watch (all Phineas wants to talk about is grass growing, the weather, and plain oatmeal...) Meanwhile, Perry the Platypus attempts to rewire the -inator to make it work in reverse. Then he starts shooting it off, and of course a casual viewer would expect it to eventually hit Phineas and Ferb and bring them back to normal. But Phineas and Ferb are far above a simple fix like that, and when Candace is in trouble, they snap out of it all by themselves and instantly create something to rescue her.

Buford: I still think we should get a ladder.

Phineas:(blank stare) No... that would be... boring. Wait a minute... I know what we should have done today!

Mommy Can You Hear Me?

The epic piece of utter Mind Screw at the end. You might have to play it back. Several times. Parental Bonus at its absolute finest.

Skiddley Whiffers

Doofenshmirtz dousing himself in honey to draw a swarm of angry bees away from Vanessa and her friends, all of whom were allergic to bees. And this after it had been established that a bee sting (followed by a string of other hilarious traumas) was the worst memory he had of camping

Jeremy finally catching on and messing with Candace's head. He gets some grade-A snarking in before she decides 'To heck with it' and abandons her latest ploy to impress him. Yes, Jeremy just got one of these.

Even if it missed, there's Ferb's impressive kick to his cousin's goal post. Also, even with his "curse" and all, he was still directly responsible for all but one of the other goals his team scored. The one exception was awesome as well, we have Ferb busting out some insane moves before passing the ball to Phineas, who uses the shape of his head to make the goal.

Lawrence, of all people, revealing that all this time he had been letting Adrian win their various competitions on purpose to make him happy. And just as it looks as though he's actually about to lose their game of "Keepy-Uppy" legitimately when he slips and sends the ball flying straight up in the air, he just gets up, gives a short and extremely calm speech about how one shouldn't jump to conclusions so quickly, then intercepts the ball before it hits the ground and really gets into the game (which he quickly turns into his victory dance). At least we know where Ferb gets his modesty and Minor In Asskicking now.

Bullseye!

Doof wins the Mechanical Mom competition in one shot. Specially because Rodney earlier helped establish that it was very easy to fail that competition.

At the episode's climax, a pumpkin-headed ghost is stalking toward the kids and everybody - Phineas and Ferb included - are clearly terrified of it. They go on to realize that 'hey, something doesn't match up here' and go from scared to determined (or possibly curious) within seconds of this realization. Just to drive the point home, Ferb picks up a nearby 'skull' and pitches it at the ghost, breaking it and revealing it to be a robot in one hit.

Phineas: Wait a minute, if you're a ghost and you have a pumpkin on your head, what does that make you when you were alive?

Ferb: The probability of a human-vegetable hybrid is exceedingly remote.

Escape from Phineas Tower

Phineas and Ferb have a lot of these after the computer goes nuts courtesy of Doof's invention of the week, specially at the end, when they finally defeat it with a logic bomb of sorts. In three seasons, they've attained such a high level of awesome that they now have to build an AI more intelligent than them to trap them repeatedly and possibly kill them in order to alleviate their boredom. That is awesome.

A Phineas and Ferb Family Christmas

Perry makes putting up Christmas decorations look badass.

Tri-Stone Area

One for the creators - even with every character speaking caveman gibberish, the Once an Episode moments and series in-jokes come through loud and clear. (It helped that pretty much everything was lampshaded to heck and back, often by the creators themselves.)

Apply some Fridge Brilliance: if stone-age Phinabunk and Gerb were able to invent the wheel, doesn't that imply that someday, Phineas and Ferb are going to invent something that'll change the world just as much? These two boys are a walking technological singularity.

Well, they have been seen working on functual cold fusion...

Doof Dynasty

Alternate Buford and Baljeet defeat dozens of castle guards in combat. Worthy of note is that Baljeet was fighting without a weapon.

Candace's demands accelerate the development of the ant society so quickly that they soon become fully sapient spacefarers.

The Remains of the Platypus

How Perry snaps out of being turned into Doof's servant. He wrote a reminder to himself on his chest right before he was brainwashed that he would see when he looked in a mirror. It works.

Carl also deserves credit there for spilling juice on Perry's suit, causing him to go change and look in the mirror. It was unintentional, but Carl of all people got Perry out of that mess.

Perry The Actorpus

Sergei the Snail. To elaborate, Sergei is so small that Doofenshmirtz needs a magnifying glass at first to see him properly, and needless to say moves along at a snail's pace, but on his entrance he breaks down the door and due to Doofenshmirtz's usual traps not fazing him in the slightest, he just keeps coming until Doof finally figures out his Weaksauce Weakness (salt). Then once he's freed, he shakes Doofenshmirtz around and flings him clear across the room like it's nothing.

Let's Bounce

In a meta sense, it can be quite satisfying to see Suzy finally get caught for her misdeeds.

Bully Bromance Breakup

Baljeet does a number of outlandish and awesome stunts and bad-ass things when the gang is climbing up the mountain, including running across a rope bridge and using it as a way to swing across the river when it breaks beneath him. What makes it even more awesome is that Baljeet was doing it without using one of Phineas and Ferb's inventions.

Another awesome Baljeet moment is him giving Buford a wedgie. Yeah, you read that right.

Buford is apparently so intimidating that he can override law enforcement and bend the laws of physics.

Quietest Day Ever

Perry's elaborate system of mirrors that he uses (twice!) to foil Doofenshmirtz.

When Ferb is questioned on where he learned his volleyball serving skills:

Ferb: At the Yorkshire Athletic School for In Your Face.

Sci-Fi Pie Fly

It's pretty impressive that Candace not only takes a day off from busting Phineas and Ferb, she successfully resists her normally-irresistible urge to bust her brothers. Several times. Even when the flying saucer they built is still there at night, she does nothing about it and just goes back to bed. It's especially impressive considering all the episodes in the past where she's tried — and failed — to quit busting her brothers (like "Last Train to Bustville", "Hip Hip Parade", and "Perry the Actorpus").

Tri-State Treasure: Boot of Secrets

Though it's actually part of a movie Phineas and Ferb made, there's the alien army, complete with cameos of several previously-appearing characters.

Doofapus

Platypus!Doof and Perry battle each other. They are continuously even matched, making it quite nail biting. Also surprising, as one might not expect Doof turning himself into a platypus alone to help much considering his opponent is not only a platypus but also a well-trained secret agent, and yet it does somehow make him more proficient in battle.

Norm Unleashed

Norm gets a big one when he has to take over for Doofenshmirtz and nearly beats Perry in the process, not to mention almost succeeding in conquering the Tri-State Area. Behold. There's also the fact that it's implied Norm is the one who retrofits himself with all that new weaponry.

The rematch where Perry returns the favor by using Phineas and Ferb's nanobots (which can transform into anything the user desires) deserves mention as well.

Where's Perry?

Doofenshmirtz's ploy at the beginning of the episode (tricking Perry into thinking he had blundered and destroyed his own inator of the day) is actually surprisingly effective, and may well have succeeded if not for his own really bad luck.

Carl gets a song for the first time, and not only is it awesome, it's a Villain Song to boot.

Where's Perry? (Part Two)

Carl is shown to be the most scarily competent villain in the series.

The entire fight between Perry, the agents, Candace, and Monogram and the robots.

Major Monogram showing he's more than just the head of OWCA: by punching/kicking/ripping apart evil robots by himself and tossing parts of them to Doofenshmirtz for use in construction.

Phineas and Ferb's table tennis match. And it's not just an Overly Long Gag, they were actually building up enough energy in the ping-pong ball to create a quantum vortex.

Near the end of the episode, Doofenshmirtz reveals to Perry that the reason the scheme of the day was a game show involving his emotionally-scarring backstories is that he's been collecting the memories of his over the course of the episode because, since great evil is dependent on such backstories, he's been storing the memories in a huge vat and will put them back in his head all at once to increase his evilness. Right as he's about to store the backstory that will fill the vat, Perry knocks the memory extraction helmet off of Doof's head - thus giving him a humiliating memory that will fill the vat. Doof, of course, acts upon this and taunts Perry for foolishly humiliating him, which left Perry extremely guilty for what he just done to Doof.

Doofenshmirtz: Remember two seconds ago when you foiled my latest plan? I do!

Blackout

This episode is one for the show's creators for conceiving and creating almost a whole episode with minimal visuals (just eyes shining in the dark) while still telling a perfectly coherent story and hitting most of the running gags.

Season 4

For Your Ice Only

Hockey Z-9. That is all.

Happy New Year!

Perry lets Doofenshmirtz make everyones' New Years resolution to make him their leader, only for Doof to realise that nobody ever fulfills their resolution, thus leaving him defeated.

My Sweet Ride

The song "My Sweet Ride" is an absolute Crowning Music of Awesome, but Ferb's finger-pointing on the line "Boom ba-ba-boom ba-bang-ba-bang-bang" is absolutely Monty Oum-like.

Sidetracked

The entire opening scene in Seattle is one. Specifically, Perry on a high-tech platy-cycle.

Agent Lyla's reveal that she messed up Perry's chase scene on purpose, knowing that the criminals would lead her to Banister.

Doof got a subtle one in the fact that he kidnapped a train and managed to tie up the conductor without anyone even noticing.

Peter the Panda coming in out of nowhere to capture Bannister, and Perry's reveal that he texted Monogram for backup.

Doofenshmirtz managing to climb up to Bannister's helicopter mere moments after Perry and Lyla, despite not having a grappling hook.

Primal Perry

Liam's platypus hunt, with Perry - sorry, Steven and Doofenshmirtz successfully avoiding him and eventually being able to defeat him.

Perry's complete mastery of Boomerangs. Makes you wonder why he doesn't have one with him all the time. Right before he shows his stuff, Liam tells him to put the boomerang down, claiming that platypuses can't throw boomerangs. Perry just gives an absolutely smug look that leaves one without the slightest doubt that Liam is about to get his ass whooped. In fact, given that the end of the episode reveals that Liam is not really Australian, while a later episode confirms that Perry is, one can easily imagine Perry thinking, "Let me show you how it's really done..."

Liam's impressive arsenal of boomerangs, including a giant one that slices off the top of a hill and ends up being a literal Chekhov's Boomerang.

Perry uses his venom spurs for the first time ever on the show.

Mind Share

Candace using the power of square dance calling in order to get the aliens back on the mind share platform before it self-destructs.

A subtle one: According to Red's narration, the kids had to tunnel through the prison wall, crawl 500 yards through gunge, find the needed parts, and crawl back through the gunge in order to rebuild the alien communication device. According to the self-destruct timer on the mind share platform, they did this in just over 10 minutes. That's a CMOA for Phineas and his friends, and a sign that the galactic prison really needs a security upgrade.

Another subtle one: after going through all that, they realize that if they make the device there, the aliens will still be out of jail. So they go back! They put their opportunity to get home at risk for the safety of a world on the other side of the galaxy. That's how selfless and brave these kids are.

Backyard Hodge Podge

The invention in this episode was purely made out of spare parts from previous inventions, yet the final result was still quite impressive.

Phineas and Ferb create a giant drop of water so they can surf on it - it turns out to be quite impressive, and they are even able to make it move!

Where's Pinky?

We have Pinky and Perry teaming up to stop Doofenshmirtz.

Knot My Problem

Phineas, Ferb, and the other kids manage to untie most of their giant Gordian Knot without needing to resort to Cutting the Knot. Of course, Candace ends up eating it, but still...

Doof accidentally swallows his All-You-Can-Eat-Inator. He boasts that at least now Perry can't destroy it this time, because it's safe in his stomach. Perry immediately proves him wrong by socking him in the gut.

Just Desserts

Candace, with Irving's technical help, manages to completely record the audio version of a giant Fireside Girls book in only hours - a task which Isabella guessed would take her a week.

Phineas and Ferb and their friends climb into outer space on their rock climbing wall.

La Candace-Cabra

Doofenshmirtz throwing a hungry shark off himself, none the worse for wear.

The chupacabra is an O.W.C.A. agent.

Baljeet taking control of the chupa-copter in order to fly Buford into some cacti. Doubles as a Funny moment.

Happy Birthday, Isabella

The major breach in status quo. This is coming from a show that may well be the very epitome of Status Quo Is God. Talk about Growing the Beard! In addition, how they broke status quo. Stacy takes a third option and covertly refuses to have her memory erased, then lies to Monogram's face.

The end of the episode, where Ferb successfully manages to get Phineas to have some alone time with Isabella by pretending that he had other things to do. It's also pretty heartwarming.

Troy Story

The derailed climax to the Trojan war reenactment, in which Ferb builds a laser-shooting, laser-proof wooden T. rex to assault the city, and Phineas eventually taking it down using flying chariots (but collapsing the entire castle along with it).

Perry gets hit by the Worst-Fear-inator... but nothing happens because he's apparently fearless. Also his business card turning out to be a miniature robot that springs him from his trap.

Just Our Luck

Phineas and Ferb defying their bad luck. After realizing that they're having bad luck, they just rig up some safety precautions offscreen and apparently use an algorithm to predict how bad luck works. For the rest of the episodes, the safety precautions work.

Return Policy

Buford and Baljeet combining their talents to successfully strike the target in the end. Also worthy of note is that they were previously tied for first place even with their respective shortcomings.

In what may be a Call-Back to Candace's unorthodox method of saving the day in Across the 2nd Dimension, the gang summons Candace to bust them so that the haywire machine will disappear.

The Inator Method

Baljeet winning the race by slamming Buford's vehicle into the ground.

Tales from the Resistance: Back to the 2nd Dimension

Candace-2 and Isabella-2 taking down the giant robot ants.

The Resistance infiltrating the penthouse and rescuing Platyborg was cool, but what makes it even more awesome was that it was only the first step in Phineas and Ferb's plan of attack. Ferb-2 allows himself to be captured during the infiltration and fools Charlene-2 into believing that he had been converted into a cyborg so he can free Phineas and Candace when they are trapped later. Meanwhile, they had the rest of the Resistance lead a frontal attack as a distraction, trapping the Doofenshmirtzes between two fronts. They did not share their plan with Candace-2 until it was well underway, just so she would behave naturally. The sheer scope and brilliance, especially when they have had relatively little experience at this point, is something to behold.

The fight between Candace-2 and Charlene-2. It's one for Candace-2, of course, but unlike the mostly hands-off Heinz-2, Charlene-2 proves to be a surprisingly capable fighter as well. Remember how Candace-2 was hailed as the biggest badass in the movie when it first came out? Charlene-2 nearly beats her.

When Heinz-2 and Charlene-2 are about to face arrest after the Resistance freed the animal cyborgs from their evil programming, Vanessa-2 arrives to the scene, telling everyone to stand their ground for a minute. She then convinces Candace-2 to let her have a moment with her parents before they can be taken into custody...... only for Vanessa-2 to slyly lead herself, her parents and Pandaborg to escape in a hovercraft driven by her boyfriend Tony Marzulo, much to Candace-2's anger.

Doof 101

Vanessa, held captive by Johnny at the top of a bell tower, catches the syringe containing the antidote (made by Doofenshmirtz) as it is shot awry and uses it to return Johnny to normal. The two of them then plummet from the bell tower, and, upon being saved by Perry's hovercraft, the first thing she does is use a net to swing trapeze-style from the hovercraft to rescue Johnny.

Act Your Age

Phineas and Baljeet did pretty well for themselves in a decade. The former has a stack of college acceptance letters shin-deep (also doubles as a Crowning Moment of Funny) and the latter is a college professor by the time of this episode.

Candace is doing pretty well too; she uses her experiences with her brothers to give a dissertation that her law professors treat as practically flawless and applaud heartily.

Carl is now an O.W.C.A. Commander.

Specials and Miscellaneous

Phineas and Ferb Christmas Vacation!

Baljeet gets a kiss on the cheek for rescuing a girls present. After blushing for a moment, he grabs the girl, gives her a full on kiss and left her dazed.

Baljeet: "Later!"

Ferb's method of putting up Christmas lights.

During the same sequence, Isabella hangs stockings with a fighter jet.

Phineas is the most laid-back guy you could ever hope to meet. Even when he has a lot of emotional investment in the idea for the day and everything goes horribly wrong, he, for the most part, maintains an upbeat, cheerful attitude. When the group is left with mere minutes before the sun goes down, Buford equips everyone with bikes to make a timely return possible. The only choice left for Candace is a tricycle, but Candace refuses to go on it. Phineas tries to persuade her in a reasonable, relaxed tone for a few moments. When she still refuses, Phineas snaps, possibly for the first time ever, and yells "GET ON THE TRIKE!" Candace is so intimidated that she scrambles onto the trike without a word. Doubles as a Crowning Moment of Funny.

After Doof meet up with Vanessa, Monogram finally decides to arrest Doof after all that's happened. However, Vanessa pulls out what appears to be a gun and forces Monogram to release her father. During both Doof and Vanessa's escape, she reveals it was just a hairdryer and denies that she did something evil, but Doof pointed that she manipulated Monogram into believing her hairdryer was a gun, which finally made Vanessa admit that maybe she did do something evil after all, leaving Doof in tears of joy.

Buford's skepticism at the start of this episode was a Crowning Moment of Awesome, as it showed, without a doubt, that this episode was going to be truly special, as Phineas was finally being called on his ability to do anything.

Phineas managing to break out of his Heroic B.S.O.D. on the island, turning the giant map into a paper airplane, propelling themselves off two palm trees using a giant rubber band, breaking the damnSOUND BARRIER,and still managing to make it back to Danville before the sun sets.

The titular song, not just for being Awesome Music but also for being damn inspiring.

Perry coming down from out of nowhere to stop Doofenshmirtz from zapping Kelly into another dimension.

Phineas and Ferb: Mission Marvel

When the fight against the villains in the mall ends in disaster and the heroes are on the verge of giving up hope, Perry (disguised as a platypus-themed superhero) pulls a Big Damn Heroes and gets them to safety.

Thor: Thank you, small but mighty friend.

Right before the penultimate battle, the depowered superheroes are easily curbstomped when they try to confront the villains. Iron Man is flung up high into the air while Red Skull taunts him about how he has neither powers nor allies left to help him. Cue Big Damn Heroes from Hulkjeet (in a Shout-Out to The Avengers!), followed by Phineas and Ferb in the Beak suit and Perry. Oh, and Doofenshmirtz joins the fight too. Usingwaffles.Doofenshmirtz's involvement is especially awesome considering that Red Skull dismissed his waffle-inator (among others) as being useless earlier in the special. It's not. His intervention frees three of the captured superheroes and continues to trip up the villains several times during the following battle.

The game of Keep Away as the heroes prevent the villains from getting the reactor core. Finally, the superheroes get to show what they are made of even without their powers, going from Brought Down to Normal to Brought Down to Badass. Highlights include Spider-Man temporarily taking down three villains in quick succession using golf equipment, Hulk and Thor putting a bicycle and a skateboard to good use, and Buford joining the fray wielding nothing but a fish. Also noteworthy is that 70% of the characters fighting on the heroes' side are handicapped in some waynote The superheroes from their lack of powers, Phineas and Ferb from the Beak suit only being partly functional, and Buford by virtue of having neither powers nor high-tech equipment, yet they still keep it up long enough for Candace and Isabella to save the day (keep reading for that one).

Candace and Isabella putting two and two together and realizing that the superheroes' powers must have been converted to data inside the kids' space station. Later, they crash the spaceship down to Earth (albeit by accident) onto the villains before they can repower their machine, bringing back the superheroes' powers at the same time. In particular, Candace intentionally pressing the red button that crashes the space station. Her reasoning? Third Time's the Charm.

At last, when the superheroes' powers are returned, they simply tell the kids to sit back and watch for this one. They then pose with an Avengers-esque pan shot and proceed to unleash a massive Curb-Stomp Battle on the villains. Perry getting to fight alongside them like a true blue superhero is the icing on the cake.

The fact that the creators worked very hard to ensure that the crossover would not violate Marvel canon. It's somewhat telling that the most contentious characterization from the special turned out to that of Phineas rather than any of the Marvel characters. In addition, the fact that Disney apparently liked the crossover so much they essentially okayed a Star Wars crossover right away.

Phineas and Ferb Save Summer

Much of the special is one big moment for Doofenshmirtz, who managed to move the Earth into an early autumn by swiping Perry with his mop into activating his latest -inator, which allowed a triumphant Doof to actually succeed in taking over the Tri-State Area for himself and his fellow L.O.V.E.M.U.F.F.I.N. villains. However, he would later regret this after learning about Rodney's grand plot to use the same technology to bring in a new Ice Age.

While Monogram and the freed agents intervene immediately afterward, there's Dr. Diminutive showing that his height is an asset for once when it allows him to effortlessly avoid Monty's sucker punch.

In a way the special's also one big one for Major Monogram. In order to make it believable that L.O.V.E.M.U.F.F.I.N. could actually beat O.W.C.A. (if only temporarily), the writers had to get Monogram out of the way first. Then they're defeated almost as soon as he comes back. Basically, the special reveals that Monogram is the main reason O.W.C.A. is so effective in stopping evil-doers.

The opening song, "Summer All Over the World". It starts out as simple drums, but it slowly builds up into a big epic musical number with the gang broadcasting themselves around the world with everyone participating. Yes, even those in the Southern Hemisphere, but the song recognizes that.

Perry, Carl and Monty breaking into L.O.V.E.M.U.F.F.I.N.'s headquarters and getting past the goons guarding the perimeter, and then helping Doofenshmirtz stop Rodney from plunging the Earth into a new Ice Age. Danny Jacob's soundtrack particularly adds to this.

After two-and-a-half seasons of their rivalry and Rodney being a Smug Snake and constantly running Doofenshmirtz down, it's extremely satisfying to see Doof finally just whack him in the face for attempting to send the Earth into a terrible fate that no one would ever survive.

Doofenshmirtz giving Major Monogram a What the Hell, Hero? for allowing L.O.V.E.M.U.F.F.I.N. to succeed in taking over the world, inspiring Monogram to rescue the captured agents and lead a Big Damn Heroes moment.

Phineas and Ferb Star Wars

The lightsaber duel between Phineas and Darth Ferb was pretty freaking awesome.

Heck, Darth Ferb in general was really cool! He out-duels Phineas, takes Agent P out of the action, and disarms both Phineas and Candace all in quick succession. Not to mention that moment he reveals his six-bladed lightsaber.

Phineas's response to the aforementioned six-bladed lightsaber is not "Oh, Crap!", but to calmly proceed to modify his own lightsaber so that it's equally well-armed. He also shows off some improbable aiming skills by tossing his destroyed lightsaber into the self-destruct port of the Sith-inator, returning Ferb to normal.

Candace solidifying her Heel–Face Turn by coming to Phineas's aid. Even after her blaster is disabled, she improvises by using the socks she got for Darth Vader earlier as weapons.

Star Wars Isabella - not only is she piloting ships as a kid and a rival to Han Solo, she also has a lot of attitude and manages to dominate the situation wherever she ends up being.

Star Wars Candace could definitely be "the Stormiest Storm Trooper ever!" Even though she never gets to accomplish much, she shows deadly competence when she does. She can fix, flip, aim and fire a cannon in a single motion, rescue Bufford and Baljeet from a collapsing tower, and stand off against a Sith Lord armed only with socks!

Night of the Living Pharmacists

While the role itself was brief and humorous, the fact that George A Romero did a cameo was amazing. Is there any better blessing for your zombie movie parody than an appearance by THE INVENTOR OF ZOMBIE MOVIES?

Isabella manages to survive without protective equipment during the first phase of the zombie breakout, and on top of that, figures out the origin of the zombifying ray, all on her own. And of course, she ends up being the one to save the day at the end.

Perry constantly watching over and protecting the kids from above (at least until his hang glider breaks).

Doofenshmirtz being a Big Damn Hero. And it's the first time he's ever flown a helicopter!

Candace remains calm throughout the entire ordeal, especially when compared to Vanessa's friends. She later on helps Vanessa and Doofenshmirtz fight a big army of zombies, and even when she gets touched, she doesn't completely freak out and just says "aw, crud".

The battle against the zombies is the first time we've seen Vanessa in action since "Vanessasary Roughness", and first time ever in an actual fight.

All the Heroic Sacrifices, but Ferb's especially, considering he knocks a small group of zombies right off the side of the water tower.

Stacy casually knocking out a zombie without even realizing it and being the only character we know of besides Doofenshmirtz to avoid being zombified by the end of the episode.

Gretchen singing on her own for the first time during the song "Jump right to it."

Phineas, Ferb, and Doofenshmirtz actually working together!

So it turns out the belt on Isabella's dress◊ is actually used for changing between her normal and Fireside Girl clothes.

Doofenshmirtz using the time loops to predict all of Perry's movements. Eventually, he is able to delay Perry long enough to actually succeed in taking over the Tri-State Area again, this time by creating a new political position (Tri-Governor) and earning the office by a unanimous vote.

Perry gets a ton of points for repeatedly escaping all of Doofenshmirtz's traps, despite him having predicted his exact moves via time loop at least thirty times! Of course, after all Perry's been through this summer, it's not surprising he'd be an Escape Artist at this point. Sadly, it wasn't enough as it allowed Doof to win, much to Perry's dismay.

Phineas and Ferb's invention is one of the biggest and most elaborate rides imaginable, which is saying something considering all the ones they have built in the past. And it just gets even bigger and better with each iteration of the time loop (until Phineas and Ferb disappear).

Baljeet playing major roles in explaining the workings of space-time to the others, proving Candace's story, and formulating the plan to save the day. This stays true even after they reunite with Phineas and Ferb!

The gang constructing a catapult entirely using items that have been sucked into the space-time void, avoiding tigers all the while.

Candace throwing a spoon into the self destruct button of the do-over-inator, which ends the time loop and saves the universe.

From "One Last Day of Summer": "We set a precedent/For entertainment." Yes, boys. Yes, you did.

Just the fact that the show managed to end with a legitimate finale without being cancelled. Not many animated shows can claim that honor.

The O.W.C.A. Files

Doofenshmirtz using his knowledge as an evil scientist to save the other agents from Parenthesis's lair. It wasn't a flawless rescue, but it showed that he could contribute uniquely to the mission.

Perry avoiding all the brainwashed agents and successfully landing a blow on Parenthesis. He's not considered the O.W.C.A.'s best agent for nothing! He then proceeds to lure Parenthesis to the training ground he'd used in the beginning of the episode, where it is revealed that he had notified his team to assemble there and they pull off the villain capture plot they'd failed earlier. Not only does this subvert the expectation that Perry entirely abandoned the others to solve the problem on his own, but consider this: had Parenthesis been an actual human, Perry's efforts at the headquarters alone most likely would have brought him down. The assembly at the training ground may well have been his plan B, despite not knowing beforehand that Parenthesis was in fact a flea in a robotic suit.Crazy-Prepared indeed!

Karen the Cat acts oblivious and unhelpful throughout the entire episode... until the end when all the other agents have been captured, upon which she singlehandedly unleashes a beatdown on Parenthesis and his robots.

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